http://quantumagvxei55qyvhlj3zljkjryzzvvgckynsfr4r7tqgmiufj75qd.onion
In theory, if one of the copies is damaged due to bit rot, or even if an
entire drive is lost, all of your data can still be recovered. For years, this setup has worked perfectly. I originally created this btrfs
array on my old Atomic Pi, with drives inside a USB HDD dock, and the same array
is still running on my current Ryzen home server—five years later—even after a
bunch of drive changes and capacity upgrades.